Watch List notes:

P. Calpurnius Ӕ Semis. Rome, 133 BC. Laureate head of Saturn right; S behind / Ship right, on which stands pilot and figure of Victory holding wreath; [P•CALP above, S before], dolphin below, ROMA inscribed on side of ship. Crawford 247/2. 9.17g, 21mm, 3h.

Good Fine. Very Rare.

Unusually, this example portrays the stern, aplustrum end of the galley on the reverse, rather than the prow end.

From the Andrew McCabe Collection;
Ex Goodman Collection, CNG 45, 18 March 1998, lot 1559.